Unitas 6497 movement = humongous watch?

The Unitas 6497 is a reliable, reasonably priced, manual wind movement that is still in production. It is bought over by ETA and is still produced. The Unitas 6497 was designed to be used in a pocket watch. Hence, it's size is bigger than movements designed for wrist watches. This movement is reliable and since hardly anyone uses pocket watches nowadays, it is used in wrist watches. Wrist watches using this movement however, is usually humongous - 45mm and beyond are common. This makes these watches out of bound to people with smaller wrists, or prefer to wear smaller watches.

One watch using this movement, however, is at a resonable diameter of 40mm. It is a model from Trias.



The model name is Trias Apollo. There are two dial colors to choose from (white or black).

Movement: Unitas 6497
Case: Stainless Steel (polished), 40mm diameter (w/o crown), 12mm thick, see-through back
Crystal: Hardened mineral
Water Resistance: 50meter


The Unitas 6497 movement is selling for USD75 on ofrei.com.

Jewel: 17
Power Reserve: 46 hour
Movement size: 36.6mm diameter, 4.5mm height
Beat: 18,000 per hour

The official Trias Web site [link]

This entry will be updated as new information is available.

Update: I have been trying to find other watches using this movement but with a diameter at 40mm or smaller. So far, no luck. Many brands use this movement. For example, Davosa, Steinhart, and so on. However, their diameter usually starts at 42mm and onwards.